Automobiles are vehicles that have a motor and are designed to carry people from one place to another. They include cars, motorcycles, buses and trucks. They are a common mode of transport worldwide and are used in many places to move people around.

The word automobile comes from the Greek words (autos) and (kyros), which mean “wheel”. In the early 20th century, the term came to refer to any vehicle with its own engine and four wheels.

There are several types of cars, including sedans, coupes, and sports utility vehicles. SUVs are usually made for off-road use. They are generally built with a larger cargo area than a sedan, which allows them to hold more passengers and more luggage.

Sedans are typically designed to be more comfortable and convenient for driving than an SUV. They are also more stylish and often come in different colors and styles.

Station wagons are also popular, as they have a lot of room for passengers and cargo. They can be box-shaped or open on both sides, depending on the manufacturer’s design.

They are usually large enough to carry a family of five or more, with space for luggage and other gear. They are usually made of metal or steel and have a long lifespan.

SUVs are usually made of aluminum and have a lot of power. They are good for off-road use, but they can be expensive to operate.

Cars have many safety features that make them safer for drivers and passengers, especially when traveling at high speeds. These include airbags, seatbelts, and crash testing technology.

These features help prevent accidents and injuries, but they are not without problems. Accidents can cause serious damage to the body of the car, and can result in serious injury or death for the driver and passengers.

In addition, cars are a major source of pollution in many countries, particularly in the United States and China. They can also be costly to own and operate, with fuel costs and maintenance expenses adding up quickly over the years.

The most common form of automotive power is gasoline, but diesel and electric cars are being developed and are expected to be commercially available by the 2020s. In the future, automobiles will be made from less harmful materials, such as biofuels and solar energy.

Two-wheeled autos, such as scooters and motorcycles, are also common. These can be very useful for short trips, such as from work to the supermarket.

A three-wheeled automobile was invented in 1885 by Karl Benz of Germany. Benz patented the Otto Cycle petrol engine, which is an internal combustion engine that uses a piston to force gas into a cylinder. He later added an accelerator for speed regulation, a battery ignition system, a spark plug, a clutch, and a radiator to cool the engine.

During the late 1800s, other engineers worked on automobiles in various parts of Europe. Among them was Siegfried Marcus of Vienna, who assembled a motorized handcart in 1870. This was the first motorized vehicle and, though it did not go further than the experimental stage, was a significant advance in the development of the automobile.